CONTREX CX-1200 - Manual (Page 377)

C - 31
(Continued)
Appendix C: Parameter Summary Numeric Quick Reference (continued)
MP-151 Misc Intrpt
Miscellaneous Interrupts (MP-151) displays a “1” in a bit to indicate which of the various system interrupts may have
caused the last reset.
Bus Error
Address Error
Illegal Instruction
Div by 0
Unimplemented Interrupt
General Exception
Not In Use
Not In Use
Minimum Value: 00000000 Maximum Value: 00111111
Units: Coded
MP-152 Device Alms
Device Alarms (MP-152) displays the status of microprocessor or other hardware related alarms. Notification of a bad
block selection is also included .
TPU FREQ1 Not Responding
TPU FREQ2 Not Responding
Low Power Alarm (per PLC and MP-54)
Bad Block Selected
Not In Use
Not In Use
Not In Use
Not In Use
Minimum Value: 00000000 Maximum Value: 00001111
Units: Coded
MP-153 PC at Intrpt
Program Counter at Interrupt (MP-153) shows where the last interrupt of the microprocessor occurred . If the CX-1200
repeatedly displays the “RESET FAULT” error box, then record the “PC @Intrpt” value as well as the line just above it
(which indicates the cause of the reset), before you press the clear key to continue. The program counter at interupt is
stored in the Program Counter at Interrupt (MP-153) Monitor Parameter for review. A value of “2560” is normal.
Minimum Value: 2560 Maximum Value: 524288
Units: Address